feat: Initializes project with basic configuration and structure

- Creates `cliff.toml` for changelog generation.
- Adds `pyproject.toml` for project metadata and dependencies.
- Sets up initial file structure with `.gitkeep`.

pyproject.toml

@@ -0,0 +1,25 @@
+[tool.poetry]
+name = "patchman"
+version = "0.1.0"
+description = ""
+authors = ["Max P. <Mail@MPassarello.de>"]
+readme = "README.md"
+packages = [{ include = "patchman", from = "src" }]
+
+[tool.poetry.dependencies]
+python = "<4.0.0,>=3.12"
+typer = { extras = ["all"], version = "^0.15.3" }
+pyyaml = "^6.0.2"
+pydantic = "^2.11.4"
+zstandard = "^0.23.0"
+textual = "^4.0.0"
+
+[tool.poetry.scripts]
+patchman = "patchman.__main__:main"
+
+[build-system]
+requires = ["poetry-core>=2.0.0"]
+build-backend = "poetry.core.masonry.api"
+
+[tool.poetry.group.dev.dependencies]
+twine = "^6.1.0"